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Frame S′ passes frame S in the usual way (positive directions). A beam of light also travels in the positive direction. Which is true? The light's speed relative to S is equal to its speed relative to S′. The light's speed relative to S is less than its speed relative to S′. The light's speed relative to S is greater than its speed relative to S′.

Frame S′ passes frame S in the usual way (positive directions). A beam of light also travels in the positive direction. Which is true? The light's speed relative to S is equal to its speed relative to S′. The light's speed relative to S is less than its speed relative to S′. The light's speed relative to S is greater than its speed relative to S′.

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Frame S ′ passes frame S in the usual way (positive directions). A beam of light also travels in the positive direction. Which is true? The light's speed relative to S is equal to its speed relative to S ′ . The light's speed relative to S is less than its speed relative to S ′ . The light's speed relative to S is greater than its speed relative to S ′ .

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